1、BSI Standards Publication Low-voltage surge protective devices Part 22: Surge protective devices connected to telecommunications and signalling networks Selection and application principles PD CLCTS 61643-22:2015 PD CLC/TS 61643-22:2016TECHNICAL SPECIFICATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIF
2、IKATION CLC/TS 61643-22 March 2016 ICS 29.240.01; 29.240.10 Supersedes CLC/TS 61643-22:2006 English Version Low-voltage surge protective devices - Part 22: Surge protective devices connected to telecommunications and signalling networks - Selection and application principles (IEC 61643-22:2015 , mod
3、ified) Parafoudres basse tension - Partie 22: Parafoudres connects aux rseaux de signaux et de tlcommunications - Principes de choix et dapplication (IEC 61643-22:2015 , modifie) berspannungsschutzgerte fr Niederspannung - Teil 22: berspannungsschutzgerte fr den Einsatz in Telekommunikations- und si
4、gnalverarbeitenden Netzwerken - Auswahl und Anwendungsprinzipien (IEC 61643-22:2015 , modifiziert) This Technical Specification was approved by CENELEC on 2016-02-29. CENELEC members are required to announce the existence of this TS in the same way as for an EN and to make the TS available promptly
5、at national level in an appropriate form. It is permissible to keep conflicting national standards in force. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedon
6、ia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europe
7、n de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. CLC/TS 61643-22:2016 E PD CLCTS
8、61643-22:2015 PD CLC/TS 61643-22:2016 PUBLISHED DOCUMENT National foreword This Published Document is the UK implementation of CLC/TS 61643-22:2016. It is derived from IEC 61643-22:2015. It supersedes DD CLC/TS 61643-22:2006 which is withdrawn. The CENELEC common modifications have been implemented
9、at the appropriate places in the text. The start and finish of each common modification is indicated in the text by tags . The UK participation in its preparation was entrusted by Technical Committee PEL/37, Surge Arresters - High Voltage, to Subcommittee PEL/37/1, Surge Arresters - Low Voltage. A l
10、ist of organizations represented on this subcommittee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016. Published by BSI Stan
11、dards Limited 2016 ISBN 978 0 580 91837 7 ICS 29.240.01; 29.240.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2016. Amendments/corrigenda issued s
12、ince publication Date Text affected TECHNICAL SPECIFICATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION CLC/TS 61643-22 March 2016 ICS 29.240.01; 29.240.10 Supersedes CLC/TS 61643-22:2006 English Version Low-voltage surge protective devices - Part 22: Surge protective devices connected to teleco
13、mmunications and signalling networks - Selection and application principles (IEC 61643-22:2015 , modified) Parafoudres basse tension - Partie 22: Parafoudres connects aux rseaux de signaux et de tlcommunications - Principes de choix et dapplication (IEC 61643-22:2015 , modifie) berspannungsschutzger
14、te fr Niederspannung - Teil 22: berspannungsschutzgerte fr den Einsatz in Telekommunikations- und signalverarbeitenden Netzwerken - Auswahl und Anwendungsprinzipien (IEC 61643-22:2015 , modifiziert) This Technical Specification was approved by CENELEC on 2016-02-29. CENELEC members are required to a
15、nnounce the existence of this TS in the same way as for an EN and to make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria,
16、 Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
17、 Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any for
18、m and by any means reserved worldwide for CENELEC Members. Ref. No. CLC/TS 61643-22:2016 E PD CLCTS 61643-22:2015CLC/TS 61643-22:2016 2 European foreword This document (CLC/TS 61643-22:2016) consists of the text of IEC 61643-22:2015 prepared by SC 37A “Low-voltage surge protective devices“ of IEC/TC
19、 37 “Surge arresters“, together with the common modifications prepared by CLC/TC 37A “Low voltage surge protective devices“. This document supersedes CLC/TS 61643-22:2006. CLCTS 61643-22:2016 includes the following significant technical changes with respect to CLC/TS 61643-22:2006: a) Update the use
20、 of multiservice SPDs (Article 8) b) Comparison between SPD classification of EN 61643-11 and EN 61643-21 (7.3.3) c) Consideration of new transmission systems as PoE (Annex F) d) EMC requirements of SPDs (Annex G) e) Maintenance cycles of SPDs (Annex I) Attention is drawn to the possibility that som
21、e of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61643-22:2015 was approved by CENELEC as a European Standard with agre
22、ed common modifications. PD CLCTS 61643-22:2015 2 IEC 61643-22:2015 IEC 2015 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope 9 2 Normative references. 9 3 Terms, definitions and abbreviations 9 3.1 Terms and definitions 10 3.2 Abbreviations 10 4 Description of technologies 10 4.1 General . 10 4.2 Vol
23、tage-limiting components 10 4.2.1 General . 10 4.2.2 Clamping components 11 4.2.3 Switching components 11 4.3 Current-limiting components 11 4.3.1 General . 11 4.3.2 Current-interrupting components 11 4.3.3 Current-reducing components. 11 4.3.4 Current-diverting components . 11 5 Parameters for sele
24、ction of SPDs and appropriate tests from IEC 61643-21 12 5.1 General . 12 5.2 Normal service conditions . 12 5.2.1 General . 12 5.2.2 Air pressure and altitude 12 5.2.3 Ambient temperature 12 5.2.4 Relative humidity . 12 5.2.5 Abnormal service conditions . 12 5.3 SPD parameters that may affect norma
25、l system operation 12 6 Risk management 13 6.1 General . 13 6.2 Risk analysis . 14 6.3 Risk identification 14 6.4 Risk treatment . 14 7 Application of SPDs . 16 7.1 General . 16 7.2 Coupling mechanisms . 16 7.3 Application, selection and installation of surge protective devices (SPDs) . 18 7.3.1 App
26、lication requirements for SPDs . 18 7.3.2 SPD installation cabling considerations 22 7.3.3 Comparison between SPD classification of IEC 61643-11 and IEC 61643-21 . 25 8 Multiservice surge protective devices . 25 9 Coordination of SPDs/ITE 28 Annex A (informative) Voltage-limiting components 29 A.1 C
27、lamping components . 29 A.1.1 General . 29 A.1.2 Metal oxide varistor (MOV) . 29 PD CLCTS 61643-22:2015 PD CLC/TS 61643-22:2016 IEC 61643-22:2015 IEC 2015 2 CLC/TS 61643-22:2016 2 European foreword This document (CLC/TS 61643-22:2016) consists of the text of IEC 61643-22:2015 prepared by SC 37A “Low
28、-voltage surge protective devices“ of IEC/TC 37 “Surge arresters“, together with the common modifications prepared by CLC/TC 37A “Low voltage surge protective devices“. This document supersedes CLC/TS 61643-22:2006. CLCTS 61643-22:2016 includes the following significant technical changes with respec
29、t to CLC/TS 61643-22:2006: a) Update the use of multiservice SPDs (Article 8) b) Comparison between SPD classification of EN 61643-11 and EN 61643-21 (7.3.3) c) Consideration of new transmission systems as PoE (Annex F) d) EMC requirements of SPDs (Annex G) e) Maintenance cycles of SPDs (Annex I) At
30、tention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 61643-22:2015 was approved
31、 by CENELEC as a European Standard with agreed common modifications. PD CLCTS 61643-22:2015 2 IEC 61643-22:2015 IEC 2015 CONTENTS FOREWORD . 6 INTRODUCTION . 8 1 Scope 9 2 Normative references. 9 3 Terms, definitions and abbreviations 9 3.1 Terms and definitions 10 3.2 Abbreviations 10 4 Description
32、 of technologies 10 4.1 General . 10 4.2 Voltage-limiting components 10 4.2.1 General . 10 4.2.2 Clamping components 11 4.2.3 Switching components 11 4.3 Current-limiting components 11 4.3.1 General . 11 4.3.2 Current-interrupting components 11 4.3.3 Current-reducing components. 11 4.3.4 Current-div
33、erting components . 11 5 Parameters for selection of SPDs and appropriate tests from IEC 61643-21 12 5.1 General . 12 5.2 Normal service conditions . 12 5.2.1 General . 12 5.2.2 Air pressure and altitude 12 5.2.3 Ambient temperature 12 5.2.4 Relative humidity . 12 5.2.5 Abnormal service conditions .
34、 12 5.3 SPD parameters that may affect normal system operation 12 6 Risk management 13 6.1 General . 13 6.2 Risk analysis . 14 6.3 Risk identification 14 6.4 Risk treatment . 14 7 Application of SPDs . 16 7.1 General . 16 7.2 Coupling mechanisms . 16 7.3 Application, selection and installation of su
35、rge protective devices (SPDs) . 18 7.3.1 Application requirements for SPDs . 18 7.3.2 SPD installation cabling considerations 22 7.3.3 Comparison between SPD classification of IEC 61643-11 and IEC 61643-21 . 25 8 Multiservice surge protective devices . 25 9 Coordination of SPDs/ITE 28 Annex A (infor
36、mative) Voltage-limiting components 29 A.1 Clamping components . 29 A.1.1 General . 29 A.1.2 Metal oxide varistor (MOV) . 29 PD CLCTS 61643-22:2015 PD CLC/TS 61643-22:2016 IEC 61643-22:2015 IEC 2015 3 7 9 10 10 10 11 11 11 11 11 11 12 12 12 12 12 12 12 13 13 13 13 13 13 13 13 13 14 14 15 15 15 17 17
37、 17 19 19 23 26 26 29 30 30 30 30IEC 61643-22:2015 IEC 2015 3 A.1.3 Silicon semi-conductors . 29 A.2 Switching components . 31 A.2.1 General . 31 A.2.2 Gas discharge tube (GDT) 31 A.2.3 Air gaps . 31 A.2.4 Thyristor surge suppressor (TSS) Fixed voltage types (self-gating) 32 A.2.5 Thyristor surge su
38、ppressor (TSS) Gated types . 32 Annex B (informative) Current-limiting components . 33 B.1 General . 33 B.2 Non-resetting current limiters 33 B.2.1 General . 33 B.2.2 Series current-interrupting components 33 B.2.3 Shunt current-diverting limiters . 34 B.3 Self-resetting current limiters . 36 B.3.1
39、General . 36 B.3.2 Series current-reducing components . 36 B.3.3 Shunt current-diverting components . 38 Annex C (informative) Risk management 39 C.1 Risk due to lightning discharges 39 C.1.1 Risk assessment 39 C.1.2 Risk analysis 39 C.1.3 Risk treatment . 41 C.2 Risk due to power line faults 42 C.2
40、.1 General . 42 C.2.2 AC power systems . 42 C.2.3 DC power systems . 42 Annex D (informative) Transmission characteristics related to IT systems . 44 D.1 General . 44 D.2 Telecommunications systems 44 D.3 Signalling, measurement and control systems 45 D.4 Cable TV systems . 45 Annex E (informative)
41、Coordination of SPDs/ITE 46 E.1 General . 46 E.2 Determination of U INand I IN. 46 E.3 Determine the output protective voltage and current waveforms for SPD1 47 E.4 Compare SPD1 and SPD2 values 47 E.5 Necessity of verification of the coordination by testing . 48 Annex F (informative) Protection of E
42、thernet systems . 49 F.1 Power over Ethernet (PoE) 49 F.2 Withstand capabilities and SPD coordination . 50 F.3 Common mode to differential mode surge conversion by switching devices 50 F.3.1 General . 50 F.3.2 Differential mode voltage reduction by inter-wire protection . 51 F.3.3 Differential mode
43、voltage reduction by single switching element 52 Annex G (informative) EMC impact of SPDs . 54 G.1 General . 54 G.2 Electromagnetic immunity 54 G.3 Electromagnetic emission 54 PD CLCTS 61643-22:2015 4 IEC 61643-22:2015 IEC 2015 Annex H (informative) Definition of internal port (Source: ITU-T K.44) .
44、 55 Annex I (informative) Maintenance of SPDs for Information Technology 56 I.1 General requirements 56 I.2 Maintenance responsibilities 56 I.3 Maintenance of SPDs 56 I.3.1 General . 56 I.3.2 Visual inspection 57 I.3.3 Complete inspection . 57 I.3.4 Examining periods . 57 Annex J (informative) Earth
45、 potential rise (EPR) . 59 J.1 General . 59 J.2 Causes of EPR . 59 J.3 Influence of soil resistivity . 59 J.4 Fibre optics . 59 Annex K (informative) References and examples of risk management based on IEC 62305-2 60 Bibliography . 61 Figure 1 SPD installation in telecommunications and signalling ne
46、tworks 15 Figure 2 Measurement and Control network (MCR) . 15 Figure 3 Coupling mechanisms 17 Figure 4 Example of a configuration of the lightning protection concept . 19 Figure 5 Example of a configuration according to the zones (Figure 4) 20 Figure 6 Example of protection measures against common-m
47、ode voltages and differential mode voltages of the data (f) and supply voltage input (g) of an ITE . 21 Figure 7 Influence of voltages U L1 andU L2on protection level U Pcaused by inductance of the leads . 22 Figure 8 Removal of the voltages U L1and U L2from the protector unit by connecting leads to
48、 a common point . 23 Figure 9 Necessary installation conditions of a three, five or multi-terminal SPD with an ITE for minimizing the interference influences on the protection level 24 Figure 10 Individual SPDs 26 Figure 11 MSPD with PE connection option 26 Figure 12 MSPD with transient bonding SPCs
49、 to PE terminals 27 Figure 13 Coordination of two SPDs . 28 Figure A.1 Behaviour of clamping components . 29 Figure A.2 Behaviour of switching components . 31 Figure B.1 Behaviour of current interrupting components 33 Figure B.2 Behaviour of current-diverting component 34 Figure B.3 Thermally operated (heat coil) three-terminal shunt current limiter 35 Figure B.4 Behaviour of current-reducing components (thermally operated type) . 36 Figure B.5 Thermally operated (PTC
